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A159911
Prime times: primes of the form HMM with primes H, MM, 0<H<24, 0<MM<60.
8
211, 223, 229, 241, 307, 311, 313, 317, 331, 337, 347, 353, 359, 503, 523, 541, 547, 719, 743, 1103, 1117, 1123, 1129, 1153, 1303, 1307, 1319, 1723, 1741, 1747, 1753, 1759, 1907, 1913, 1931, 2311, 2341, 2347
OFFSET
1,1
COMMENTS
Suggested by E. Angelini, cf. link.
MATHEMATICA
Select[Flatten[Table[FromDigits[Join[IntegerDigits[h], PadLeft[ IntegerDigits[ m], 2]]], {h, Prime[Range[9]]}, {m, Prime[Range[ 17]]}]], PrimeQ] (* Harvey P. Dale, Mar 27 2022 *)
PROG
(PARI) forprime( h=0, 24, forprime( m=0, 60, isprime(100*h+m) & print1(100*h+m, ", ")))
CROSSREFS
See also A050246 and A229106, where H and MM (and SS) do not need to be prime.
Sequence in context: A136601 A108406 A051268 * A319141 A133959 A133960
KEYWORD
base,dumb,easy,fini,full,nonn
AUTHOR
M. F. Hasler, May 01 2009
STATUS
approved